Adjustable flask-clamp



(No Model.)

A. 0-. ALLBEE.

ADJUSTABLE FLASK GLAMR, j No. 378,640. Patented Feb. 28, 1888.

W/TNE55E5. E/\/ T 135.

UNITED STATES MAENT ALEXANDER O. ALLBEE, OF WAKEFIELD, ASSIGNOR TO THE SMITH & ANTHONY STOVE COMPANY, OF BOSTON, MASSACHUSETTS.

' ADJUSTABLE FLASK=CLAMP.

SPECIFiCATION' forming part of Letters Patent No. 378,640, dated February 28, 1888.

Application filed June 15, 1887. Serial No. 241.415.

.To all whom it may concern.-

Be it known that I, ALEXANDER 0. ALL- BEE, of Wakefield, in the county of Middlesex and State of Massachusetts, a citizen of the United States, have invented a new and useful Improvement in Adjustable Flask-Clamps, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in explaining its nature.

Heretofore flask-clamps for locking together the parts or sections of flasks used in foundries have been non-adj ustable, and as the sections of flasks and the flasks themselves vary in size very considerably it has rendered necessary the use of quite a large number of clamps varying in length, and it has occasioned a great loss of time in finding a clamp of proper length for the work or in fitting it to the flask by blocking up.

My invention obviates these objections by making a clamp which is adjustable in length, so that it is adapted to be immediately applied and fitted to a flask of any size; and I have represented it as carried into effect as illustrated in the drawings, wherein-- Figure 1 is a view in perspective of one section of the clamp. Fig. 2 is a view in perspective of the other section. Fig. 3 represents the two sections together. Fig. 4c is a crosssection on the line 0000 of Fig. 3. Fig. 5 is a longitudinal section through both parts of the clamp. Fig. 6 is a view in perspective of a flask to illustrate the application of the clamp thereto.

Referring to the drawings, A represents one part or section of the clamp, and B the other part or section.

The part A has the jaw, lug, or finger, a, and an arm, a, extending from the base of the jaw, lug, or finger at substantially a right angle thereto, having a longitudinal recess, of, in one surface thereof, and which is of a width and depth to receive the longitudinal arm I) of the section B of the clamp. The bottom surface, a is provided with cross-corrugations or alternating cross recesses a and projections of, and the recess is preferably made wider at its entrance than at its bottom; or, in other words, the inner surfaces, a of the walls of the recesses are inclined slightly toward the bottom of the recess.

The section B has the jaw or finger or lug b (No model.)

and the bar 1) extending substantially at a right angle therefrom, as above referred to. This bar is shaped to fit the recess a in the bar, and has the corrugated surface or cross projections b" and recesses b ,which are adapted to fit the corrugated surface at the bottom of the recess. In other words, the bar has a series of cross projections and recesses which correspond in size and order to the cross projections and recesses (a a The bar I) is also made to fit the recess, and when the inner surfaces of the walls of said recess are inclined the outer surfaces of the said bar are also inclined to fit. The bar a has also a lug, 0, extending from one edge, to 'which'is secured, by a pivot, c, a button, 0, which is adapted to be turned thereon upon the bar b of the section B, to lock it to the bar of the other section of the clamp. A stop, o limits the movement of the button, and the surface of the bar and the under surface of the button may be so shaped as to cause the button-to be held in place by a wedging or binding action. Of course any other suitable form of locking device may be employed in lieu of the button.

It will be seen that the projections of one bar interlock or mesh with the projections of the other, and that when so interlocked and the two bars fastened together the two jaws, fingers, or lugs of the clamp are brought into rigid relation with each other; also that the recess in the bar of one section of the clamp serves as a guide for the bar of the other section.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States- As an improved article of manufacture, an adjustable flask'clamp in two sections, one of which, the section A, has the finger a, the long recess a, the cross projection a and the pivoted locking-bar O, and the other of which, the part B, has the jaw, finger, or lug b, the long arm I), of a shape to fit the recess a having cross projections b", and a flat surface upon which the pivoted locking-bar O is adapted to be moved in fastening the two sections of the clamp together, substantially as described.

ALEXANDER O. ALLBEE.

Witnesses:

F. F. RAYMOND, 26, J. M. DOLAN. 

